Exercise apparatus



FIG. 1 is a front perspective view of an exercise apparatus showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevatonal view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

The portions shown in broken lines form no part of the claimed design. 

The ornamental design for an exercise apparatus, as shown and described. 